AIT Worldwide Home DeliveryAssembly or Installation Contractor – Indoor and Outdoor Products- San Diego CA AIT Worldwide Home DeliveryAssembly or Installation Contractor – Indoor and Outdoor Products- San Diego CASan Diego, California$40,000–$100,000 / yearContractorOur dedicated teams of contractors offer fast and reliable home services for many high-end companies sending goods directly to consumers. Contractors to build indoor and outdoor products- involves arriving at customer homes to assembly products such as: treadmills (indoor).